Mommy tweets: Demi Moore, Heidi Klum and Jenna Elfman

Kim Grundy is a mom, writer, expert laundry folder and sandwich maker, not necessarily in that order. Raised in Oklahoma, she is now a West Coast gal and lives in California with her husband and two sons, along with one dog, two fish (oo...

Elfman and her husband Bodhi Elfman are parents to two boys named Easton and Storey. She re-tweeted this cute thought from her husband: "I give him vanilla ice cream and then bring him home to @JennaElfman for dinner and bath. Dads have it easy."

Heidi Klum

"Excited to show you all my Spring collection of maternity wear for A Pea in the Pod and Motherhood Maternity!" tweeted Heidi Klum, with a link to a video of The Do's and Don'ts of Maternity Clothes.

She also tweeted a vintage photo of one of her early modeling shoots. "Wow! Check out this picture from 1992. One of my very first photo shoots. This is my original hair color!" she wrote, with a link to her photo.

Melissa Joan Hart

"To all the fans concerned about Melissa & Joey will be affected by my baby bump. Don't be!" tweeted Melissa Joan Hart, who just announced she is pregnant with her third child. "We finished Season 2 & start 3 after baby arrives!"

"Thanks to all of you for the love about my big news!" she continued. "P.S. don't believe reports that say "confirmed" unless it's from the source or a rep."

Kim Zolciak

"Just talked baby talk to baby KJ on the phone!!" tweeted Real Housewives of Atlanta’s Kim Zolciak, who is currently pregnant again. "2 days is the longest I have ever been away from him and for me its too da*n loooong!"

She also took to Twitter to clear up rumors. "I will be returning to RHOA sooo don't believe the BS!!" she tweeted.